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Dear Student,
Ans 3. Fungi show heterotrophic mode of nutrition. Most of the fungi are saprophytic while some are parasitic. Saprophytic nutrition is that nutrition in which an organism feeds on dead and decaying organic matter and converts simple organic substances into inorganic forms. Hence, option A is correct.
Ans 4. Insects such as cockroach and grasshoppers have tracheal system. Hence, option A is correct.
Regards
Ans 3. Fungi show heterotrophic mode of nutrition. Most of the fungi are saprophytic while some are parasitic. Saprophytic nutrition is that nutrition in which an organism feeds on dead and decaying organic matter and converts simple organic substances into inorganic forms. Hence, option A is correct.
Ans 4. Insects such as cockroach and grasshoppers have tracheal system. Hence, option A is correct.
Regards